/**
 * ***************************************************************************** Copyright (c) 2011,
 * 2012 IBM Corporation and others. All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0 which accompanies this
 * distribution, and is available at http://www.eclipse.org/legal/epl-v10.html
 *
 * <p>Contributors: IBM Corporation - initial API and implementation
 * *****************************************************************************
 */
package org.eclipse.che.plugin.java.server.jdt.quickfix;

import java.util.ArrayList;
import java.util.Hashtable;
import org.eclipse.che.plugin.java.server.jdt.testplugin.Java17ProjectTestSetup;
import org.eclipse.che.plugin.java.server.jdt.testplugin.JavaProjectHelper;
import org.eclipse.che.plugin.java.server.jdt.testplugin.TestOptions;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jdt.core.formatter.DefaultCodeFormatterConstants;
import org.eclipse.jdt.internal.corext.codemanipulation.StubUtility;
import org.eclipse.jdt.internal.corext.template.java.CodeTemplateContextType;
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.internal.ui.text.correction.CorrectionMessages;
import org.eclipse.jdt.ui.PreferenceConstants;
import org.eclipse.jface.preference.IPreferenceStore;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class ModifierCorrectionsQuickFixTest17 extends QuickFixTest {

  private static final Class THIS = ModifierCorrectionsQuickFixTest17.class;

  private IJavaProject fJProject1;

  private IPackageFragmentRoot fSourceFolder;

  public ModifierCorrectionsQuickFixTest17() {
    super(new Java17ProjectTestSetup());
  }

  //	public static Test suite() {
  //		return setUpTest(new TestSuite(THIS));
  //	}
  //
  //	public static Test setUpTest(Test test) {
  //		return new Java17ProjectTestSetup(test);
  //	}

  @Before
  public void setUp() throws Exception {
    super.setUp();
    Hashtable options = TestOptions.getDefaultOptions();
    options.put(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR, JavaCore.SPACE);
    options.put(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE, "4");
    options.put(
        DefaultCodeFormatterConstants.FORMATTER_INSERT_NEW_LINE_AFTER_ANNOTATION_ON_LOCAL_VARIABLE,
        JavaCore.DO_NOT_INSERT);

    JavaCore.setOptions(options);

    IPreferenceStore store = JavaPlugin.getDefault().getPreferenceStore();
    store.setValue(PreferenceConstants.CODEGEN_ADD_COMMENTS, false);

    fJProject1 = Java17ProjectTestSetup.getProject();

    StubUtility.setCodeTemplate(CodeTemplateContextType.METHODSTUB_ID, "", null);
    StubUtility.setCodeTemplate(CodeTemplateContextType.CONSTRUCTORSTUB_ID, "", null);

    fSourceFolder = JavaProjectHelper.addSourceContainer(fJProject1, "src");
  }

  @After
  public void tearDown() throws Exception {
    super.tearDown();
    JavaProjectHelper.clear(fJProject1, Java17ProjectTestSetup.getDefaultClasspath());
  }

  @Test
  public void testAddSafeVarargs1() throws Exception {
    IPackageFragment pack1 = fSourceFolder.createPackageFragment("p", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    public static <T> List<T> asList(T ... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);

    assertCorrectLabels(proposals);
    assertNumberOfProposals(proposals, 3);

    String[] expected = new String[1];
    buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    @SafeVarargs\n");
    buf.append("    public static <T> List<T> asList(T ... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[0] = buf.toString();

    assertExpectedExistInProposals(proposals, expected);
  }

  @Test
  public void testAddSafeVarargs2() throws Exception {
    IPackageFragment pack1 = fSourceFolder.createPackageFragment("p", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    public final <T> List<T> asList(T ... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);

    assertCorrectLabels(proposals);
    assertNumberOfProposals(proposals, 3);

    String[] expected = new String[1];
    buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    @SafeVarargs\n");
    buf.append("    public final <T> List<T> asList(T ... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[0] = buf.toString();

    assertExpectedExistInProposals(proposals, expected);
  }

  @Test
  public void testAddSafeVarargs3() throws Exception {
    IPackageFragment pack1 = fSourceFolder.createPackageFragment("p", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    @Deprecated\n");
    buf.append("    public static <T> List<T> asList(T ... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);

    assertCorrectLabels(proposals);
    assertNumberOfProposals(proposals, 3);

    String[] expected = new String[1];
    buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    @SafeVarargs\n");
    buf.append("    @Deprecated\n");
    buf.append("    public static <T> List<T> asList(T ... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[0] = buf.toString();

    assertExpectedExistInProposals(proposals, expected);
  }

  @Test
  public void testAddSafeVarargs4() throws Exception {
    IPackageFragment pack1 = fSourceFolder.createPackageFragment("p", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("public class E {\n");
    buf.append("    public <T> E(T ... a) {\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);

    assertCorrectLabels(proposals);
    assertNumberOfProposals(proposals, 3);

    String[] expected = new String[1];
    buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("public class E {\n");
    buf.append("    @SafeVarargs\n");
    buf.append("    public <T> E(T ... a) {\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[0] = buf.toString();

    assertExpectedExistInProposals(proposals, expected);
  }

  @Test
  public void testAddSafeVarargs5() throws Exception {
    IPackageFragment pack1 = fSourceFolder.createPackageFragment("p", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    public <T> List<T> asList(T ... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);

    assertCorrectLabels(proposals);
    assertNumberOfProposals(proposals, 2);

    assertProposalDoesNotExist(
        proposals, CorrectionMessages.VarargsWarningsSubProcessor_add_safevarargs_label);
  }

  @Test
  public void testAddSafeVarargsToDeclaration1() throws Exception {
    IPackageFragment pack1 = fSourceFolder.createPackageFragment("p", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    void foo() {\n");
    buf.append("        Y.asList(Y.asList(\"Hello\", \" World\"));\n");
    buf.append("    }\n");
    buf.append("}\n");
    buf.append("class Y {\n");
    buf.append("    public static <T> List<T> asList(T... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot, 2);

    assertCorrectLabels(proposals);
    assertNumberOfProposals(proposals, 2);

    String[] expected = new String[1];
    buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    void foo() {\n");
    buf.append("        Y.asList(Y.asList(\"Hello\", \" World\"));\n");
    buf.append("    }\n");
    buf.append("}\n");
    buf.append("class Y {\n");
    buf.append("    @SafeVarargs\n");
    buf.append("    public static <T> List<T> asList(T... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[0] = buf.toString();

    assertExpectedExistInProposals(proposals, expected);
  }

  @Test
  public void testAddSafeVarargsToDeclaration2() throws Exception {
    IPackageFragment pack1 = fSourceFolder.createPackageFragment("p", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    void foo() {\n");
    buf.append("        Y.asList(Y.asList(\"Hello\", \" World\"));\n");
    buf.append("    }\n");
    buf.append("}\n");
    buf.append("class Y {\n");
    buf.append("    @Deprecated\n");
    buf.append("    public static <T> List<T> asList(T... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot, 2);

    assertCorrectLabels(proposals);
    assertNumberOfProposals(proposals, 2);

    String[] expected = new String[1];
    buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    void foo() {\n");
    buf.append("        Y.asList(Y.asList(\"Hello\", \" World\"));\n");
    buf.append("    }\n");
    buf.append("}\n");
    buf.append("class Y {\n");
    buf.append("    @SafeVarargs\n");
    buf.append("    @Deprecated\n");
    buf.append("    public static <T> List<T> asList(T... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[0] = buf.toString();

    assertExpectedExistInProposals(proposals, expected);
  }

  @Test
  public void testAddSafeVarargsToDeclaration3() throws Exception {
    IPackageFragment pack1 = fSourceFolder.createPackageFragment("p", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("public class E {\n");
    buf.append("    void foo() {\n");
    buf.append("        Y.asList(Y.asList(\"Hello\", \" World\"));\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("class Y {\n");
    buf.append("    public static <T> List<T> asList(T... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    pack1.createCompilationUnit("Y.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot, 1);

    assertCorrectLabels(proposals);
    assertNumberOfProposals(proposals, 2);

    String[] expected = new String[1];
    buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("class Y {\n");
    buf.append("    @SafeVarargs\n");
    buf.append("    public static <T> List<T> asList(T... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[0] = buf.toString();

    assertExpectedExistInProposals(proposals, expected);
  }

  @Test
  public void testAddSafeVarargsToDeclaration4() throws Exception {
    IPackageFragment pack1 = fSourceFolder.createPackageFragment("p", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    void foo() {\n");
    buf.append("        new Y(Y.asList(\"Hello\", \" World\"));\n");
    buf.append("    }\n");
    buf.append("}\n");
    buf.append("class Y {\n");
    buf.append("    @SafeVarargs\n");
    buf.append("    public static <T> List<T> asList(T... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("    public <T> Y(T ... a) {\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot, 2);

    assertCorrectLabels(proposals);
    assertNumberOfProposals(proposals, 2);

    String[] expected = new String[1];
    buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    void foo() {\n");
    buf.append("        new Y(Y.asList(\"Hello\", \" World\"));\n");
    buf.append("    }\n");
    buf.append("}\n");
    buf.append("class Y {\n");
    buf.append("    @SafeVarargs\n");
    buf.append("    public static <T> List<T> asList(T... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("    @SafeVarargs\n");
    buf.append("    public <T> Y(T ... a) {\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[0] = buf.toString();

    assertExpectedExistInProposals(proposals, expected);
  }

  @Test
  public void testAddSafeVarargsToDeclaration5() throws Exception {
    JavaProjectHelper.set15CompilerOptions(fJProject1);
    try {
      IPackageFragment pack1 = fSourceFolder.createPackageFragment("p", false, null);
      StringBuffer buf = new StringBuffer();
      buf.append("package p;\n");
      buf.append("import java.util.List;\n");
      buf.append("public class E {\n");
      buf.append("    void foo() {\n");
      buf.append("        Y.asList(Y.asList(\"Hello\", \" World\"));\n");
      buf.append("    }\n");
      buf.append("}\n");
      buf.append("class Y {\n");
      buf.append("    public static <T> List<T> asList(T... a) {\n");
      buf.append("        return null;\n");
      buf.append("    }\n");
      buf.append("}\n");
      ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

      CompilationUnit astRoot = getASTRoot(cu);
      ArrayList proposals = collectCorrections(cu, astRoot);
      assertNumberOfProposals(proposals, 1);

      assertProposalDoesNotExist(proposals, "Add @SafeVarargs to 'asList(..)'");
    } finally {
      JavaProjectHelper.set17CompilerOptions(fJProject1);
    }
  }

  @Test
  public void testRemoveSafeVarargs1() throws Exception {
    IPackageFragment pack1 = fSourceFolder.createPackageFragment("p", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    @SafeVarargs\n");
    buf.append("    public static <T> List<T> asList() {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);

    assertCorrectLabels(proposals);
    assertNumberOfProposals(proposals, 1);

    String[] expected = new String[1];
    buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    public static <T> List<T> asList() {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[0] = buf.toString();

    assertExpectedExistInProposals(proposals, expected);
  }

  @Test
  public void testRemoveSafeVarargs2() throws Exception {
    IPackageFragment pack1 = fSourceFolder.createPackageFragment("p", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    @SafeVarargs\n");
    buf.append("    public <T> List<T> asList2(T... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);

    assertCorrectLabels(proposals);
    assertNumberOfProposals(proposals, 1);

    String[] expected = new String[1];
    buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    public <T> List<T> asList2(T... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[0] = buf.toString();

    assertExpectedExistInProposals(proposals, expected);
  }

  @Test
  public void testRemoveSafeVarargs3() throws Exception {
    IPackageFragment pack1 = fSourceFolder.createPackageFragment("p", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    @SafeVarargs\n");
    buf.append("    @Deprecated\n");
    buf.append("    public <T> List<T> asList2(T... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);

    assertCorrectLabels(proposals);
    assertNumberOfProposals(proposals, 1);

    String[] expected = new String[1];
    buf = new StringBuffer();
    buf.append("package p;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    @Deprecated\n");
    buf.append("    public <T> List<T> asList2(T... a) {\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[0] = buf.toString();

    assertExpectedExistInProposals(proposals, expected);
  }
}
